std::atomic_flag::test_and_set
From Cppreference
< cpp | atomic | atomic flag
| Defined in header <atomic>
| ||
| bool test_and_set(std::memory_order order = std::memory_order_seq_cst) volatile;
| (1) | (since C++11) |
| bool test_and_set(std::memory_order order = std::memory_order_seq_cst);
| (2) | (since C++11) |
Atomically changes the state of a std::atomic_flag to set (true) and returns the value it held before.
[edit] Parameters
| order | - | the memory sycnhronization ordering for this operation |
[edit] Exceptions
[edit] See also
| atomically sets flag to false (public member function) | |
| atomically sets the flag to true and returns its previous value (function) | |
| (C++11) | defines memory ordering constraints for the given atomic operation (typedef) |
